Browsing by Author "Daripa, Prabir"
Now showing items 1-20 of 61
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Acharya, Prabha Ramchandra (Texas A&M University, 2005-11-01)Fuel cell power generation systems provide a clean alternative to the conventional fossil fuel based systems. Fuel cell systems have a high efficiency and use easily available hydrocarbons like methane. Moreover, since ...
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Advancing Partially-Averaged Navier-Stokes Method in Wall-Bounded and Spatially Evolving Turbulence Tazraei, Pedram (2020-01-15)Scale-resolving simulations (SRS) of turbulence offer a computationally viable alternative to direct numerical simulations (DNS) and large eddy simulations (LES) for many flows of engineering interest. SRS seeks to achieve ...
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Reyes, Dasia Ann (2013-05-06)The goal of this dissertation is to consolidate the theoretical foundation of variable-resolution (VR) methods in general and the partially-averaged Navier-Stokes (PANS) approach in particular. The accurate simulation of ...
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Sekaran, Aarthi 1985- (2012-11-21)The determination of the leakage and consequently the friction factor is an important part of analyzing the flow through a seal. This is done experimentally by means of a flat plate tester, which allows for the simplified ...
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O'Neil, Joshua Robert (Texas A&M University, 2006-04-12)Rapid Distortion Theory is used to perform calculations of unsteadily-forced initially isotropic turbulence so that the physics of such flows can be better understood. The results of these calculations show that there are ...
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Patel, Jay (2022-08-02)Current numerical methods solving the Navier-Stokes equations such as, the subject matter of this project, the parabolized stability equations (PSE) have proven to be costly for industrial applications. In particular, ...
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Cao, Yi (2017-04-18)This thesis presents a 3D numerical simulation for a Free Standing Hybrid Riser under Vortex Induced Vibration, with prescribed motion on the top to replace the motion of the buoyancy can. The model is calculated using a ...
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Bikkani, Ravi Kiran (Texas A&M University, 2005-11-01)The objective of the thesis is to characterize the linear and nonlinear aspects of inertial and pressure effects in turbulent flows. In the first part of the study, computations of Navier-Stokes and 3D Burgers equations ...
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El-Ahmady, Mohamed Hamed (Texas A&M University, 2004-09-30)It is common for field models of tight gas reservoirs to include several wells with hydraulic fractures. These hydraulic fractures can be very long, extending for more than a thousand feet. A hydraulic fracture width is ...
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Mora, Carlos A. (2009-06-02)Coalbed methane (CBM) reservoirs have become a very important natural resource around the world. Because of their complexity, calculating original gas in place and analyzing production performance require consideration of ...
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Kocian, Travis Scott (2018-05-03)Laminar-to-turbulent transition is a process that is critical in determining the system drag and surface heating of a flight vehicle, and the ability to predict, and possibly control, this process has become an essential ...
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Yeh, Jean (2018-09-21)In this dissertation, two problems are studied by computational mechanics. The first problem is the development and application of open-source software OpenFOAM to solve a coupled system from shape optimization on a ...
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Chen, Yun (2017-12-11)The study of the interaction between particles and fluid-fluid interfaces is essential to a variety of applications. A systematic way to understand those phenomena is to consider them in two different limits: single particle ...
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Morsy, Ahmed Mohamed Slaheldin Hassan Mohamed (2016-08-08)In this dissertation various converter topologies are proposed and evaluated in view of the state of art solutions to optimize power density and converter efficiency for several applications including photovoltaic solar ...
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Chen, Jing (2009-05-15)Currently, a lack of accurate emission data exits for particulate matter (PM) in agricultural air quality studies (USDA-AAQTF, 2000). PM samplers, however, tend to over estimate the concentration of most agricultural dusts ...
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Bertsch, Rebecca Lynne (2014-07-09)In hypersonic flows, turbulence critically influences mass and momentum transport, mixing, heat transfer and acoustic noise generation. In contrast to incompressible flow, in high speed flows pressure is a true thermodynamic ...
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Murthi, Aditya (Texas A&M University, 2005-11-01)The three-dimensional lid-driven cavity flow is investigated at Reynolds Number(Re)=10,000 for a wide range of spanwise-aspect ratios of 3:1:1, 0.5:1:1, and 1:1:1 using the Partially Averaged Navier-Stokes(PANS) turbulence ...
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Peck, Madeline McMillan (2023-04-21)Boundary-layer transition from laminar to turbulent flow critically affects vehicle safety and performance, particularly at hypersonic speeds where heat-transfer rates are extreme. Accounting for transition effects requires ...
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Tang, Zhaoxiang (Texas A&M University, 2005-11-01)Computer models are nowadays routinely used in harbor engineering applications. Models based on the two-dimensional elliptic mild-slope equation can simultaneously simulate refraction, diffraction, reflection, and dissipation ...
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Mothi Venkatesan, Sabaresan (2009-06-02)Luby Transform Codes were the first class of universal erasure codes introduced to fully realize the concept of scalable and fault‐tolerant distribution of data over computer networks, also called Digital Fountain. Later ...